Boss Audio Systems AVA-250 Owner'S Manual Download Page 2

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Thank you for purchasing a BOSS car audio amplifier, The BOSS amplifiers were engineered and
designed in the U.S.A. to the highest quality level and will provide you with years of high quality
sound level amplification and reproduction.

MODEL : AVA-650/800

MODEL : AVA-250/450/550/700/750

AMPLIFIER SPECIFICATIONS

Model

AVA-250

AVA-450

AVA-550

AVA-650

AVA-700

AVA-750

AVA-800

RMS Watts per Channel. 4 Ohms RMS
Watts per Channel, 2 Ohms

60x2 90x2 75x2

110x2

100x2
150x2

75x4
110x4

150x2
225x2

200x2
350x2

100x4
150x4

Max Watts per Channel, 4 Ohms
Bridgeoble Watts per Channel, 4 Ohms
Slqnal to Noise Ratio Freauency
R

240 120x 1
90dB 9-50

320 160x1
90dB 9-50

420 210x1
90dB 9-50

1000
500x2
90dB 9-50

650 325x1
90dB 9-50

1200
600x1
90dB 9-50

1200
600x2
90dB 9-50

Distortion @RMS Watts Channel
Separation Damping Factor

0.01%
90dB
>100+

0.01%
90dB 100+

0.01%
90dB
100+

0.01%
90dB
125+

0.01%
90dB 125+

0.01%
90dB
125+

0.01%
90dB 125+

-1

Summary of Contents for AVA-250

Page 1: ...AUDIO SYSTEMS OWNER S MANUAL TRI MODE CAPABLE SIMUTANEOUS STEREO BRIDGED OPERATIONS CES98 AVA 250 AVA 450 AVA 550 AVA 650 AVA 700 AVA 750 AVA 800 ...

Page 2: ...VA 750 AVA 800 RMS Watts per Channel 4 Ohms RMS Watts per Channel 2 Ohms 60x2 90x2 75x2 110x2 100x2 150x2 75x4 110x4 150x2 225x2 200x2 350x2 100x4 150x4 Max Watts per Channel 4 Ohms Bridgeoble Watts per Channel 4 Ohms Slqnal to Noise Ratio Freauency R H KH 240 120x 1 90dB 9 50 320 160x1 90dB 9 50 420 210x1 90dB 9 50 1000 500x2 90dB 9 50 650 325x1 90dB 9 50 1200 600x1 90dB 9 50 1200 600x2 90dB 9 50...

Page 3: ...Bridgeable Power Amplifier D Power Output Per Channel 60 Watts RMS D Two Channel Bridgeable Amplifier D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A B Operation D Built in Electronic Crossover Network Adjustable from 40Hz 300Hz D Continuously Variable Input Gain Adjustment D Gold Plated RCA Low Level High Impedance Input D WIre Harness High Level Low Impedance Input D Remote Turn on Turn o...

Page 4: ...round Remote Connection Terminals D Power On LED Indicator D Dimensions 9 1 8 W x 2 3 8 H x 8 1 4 L Model AVA 550 D 420 Watt Bridgeable Power Amplifier D Power Output Per Channel 100 Watts RMS DTwo Channel Bridgeable Amplifier D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A B Operation D Built in Electronic Crossover Network Adjustable from 40Hz 300Hz D Continuously Variable Input Gain Adju...

Page 5: ...Indicator D Automotive Style Protection Fuses D Upright Easy Access Speaker And Power Ground Remote Connection Terminals D Power On LED Indicator D Dimensions 9 1 8 W x 2 3 8 H x 13 3 4 L Model AVA 700 D 650 Watt Bridgeable Power Amplifier D Power Output Per Channel 150 Watts RMS D Two Channel Bridgeable Amplifier D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A B Operation D Built in Electr...

Page 6: ...7 3 4 L Model AVA 800 D 840 Watt Bridgeable Power Amplifier D Power Output Per Channel 100 Watts RMS D Four Channel Bridgeable Amplifier DTri Way Configuration 100 Watts Per Channel Into Four Channels 220 Watts Per Channel into Two Channels 100 Watts Per Channel Into Two Channels plus 220 Watts into a Third Channel D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A B Operation D Built in Elect...

Page 7: ...ower should be the equivalent of adding an additional 10 watts to each speakeri When operating at 2 ohms the amplifiers increase their power output by approximately 50 percent The current draw of the amplifiers will also increase by about the same amount Be sure that you have enough current to run the amplifiers Into a 2 ohm load otherwise distorted music will be reproduced PLEASE NOTE The gain co...

Page 8: ...ng screw holes by holding the AMPLIFIER in place and using a scribe or one of the mounting screws inserted in each mounting hole in turn to mark the mounting surface If the mounting surface is carpeted measure the hole centers and mark with a felt tip pen Drill pilot holes for the mounting screws into the holes of the system insert the mounting screws into the holes and tighten them securely LOW I...

Page 9: ...50 450 550 700 750 III BRIDGED SPEAKERS WIRING MODEL AVA 250 450 550 700 750 CONNECT THE NEGATIVE SPEAKER TERMINAL TO THE NEGATIVE TERMINAL OF R CHANNEL ON THE AMPLIFIER CONNECT THE POSITIVE SPEAKER TERMINAL OF L CHANNEL ON THE AMPLIFIER 8 ...

Page 10: ...to block high frequencies from the Crossover Subwoofer as shown In the figure below Capacitor and inductor values as written in the below determine the crossover frequencies The front and rear channels of this amplifier have this capability Only the rear left and right channels are shown below MODEL AVA 250 450 550 700 750 CAPACITOR HIGH PASS FILTER COMPONENT VALUES FOR 6 dB PASSIVE CROSSOVER FREQ...

Page 11: ...Ill 4 SPEAKERS WIRING 4 CHANNEL MODEL AVA 650 800 III BRIDGED SPEAKERS WIRING MODEL AVA 650 800 10 ...

Page 12: ...NG MODEL AVA 650 800 CAPACITOR HIGH PASS FILTER COMPONENT VALUES FOR 6 dB PASSIVE CROSSOVER FREQUENCY INDUCTOR CAPACITOR 80 Hz 7 5mH 470 UF 100 Hz 6 5 mH 330 uF 120 Hz 5 5 mH 330 uF 150 Hz 4mH 220 uF 11 INDUCTOR LOW PASS FILTER ...

Page 13: ...Ill POWER WIRING III MODEL AVA 250 450 550 700 750 MODEL AVA 650 800 12 ...

Page 14: ...cted or are subject to pinching of damage from nearby objects The 12DC power wire must be fused at the battery positive terminal connection Before making or breaking power connections at this system power terminals disconnect the 12V wire at the battery end Confirm your radio cassette player and or other equip Is turned off while connecting the input jacks and speaker terminals If you need to repl...

Page 15: ...k BALANCE control on Car Stereo or signal source to verify It Is at mid point c If using RCA Low level Input reverse the Input plugs at the Amplifier right to left or vice verse If the channel that Is silent reverses position the problem Is In the Car StereofEQ X over or other signal source or connecting cable Weak Output a Check Input Sensitivity control adjustment Noise in Audio a If noise Is a ...

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